Electric fan



FIG. 1 is a front, top and right side elevational perspective view of a electric fan showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a right side, top and rear elevational a perspective view with the leg in another position. 

The ornamental design for an electric fan, as shown and described. 